GB8915214D0 - Three-phase electric motor - Google Patents
Three-phase electric motorInfo
- Publication number
- GB8915214D0 GB8915214D0 GB898915214A GB8915214A GB8915214D0 GB 8915214 D0 GB8915214 D0 GB 8915214D0 GB 898915214 A GB898915214 A GB 898915214A GB 8915214 A GB8915214 A GB 8915214A GB 8915214 D0 GB8915214 D0 GB 8915214D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- electric motor
- phase electric
- phase
- motor
- electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8801700A NL8801700A (en) | 1988-07-05 | 1988-07-05 | ELECTRIC MULTI-POLE MACHINE. |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8915214D0 true GB8915214D0 (en) | 1989-08-23 |
GB2220529A GB2220529A (en) | 1990-01-10 |
GB2220529B GB2220529B (en) | 1992-10-21 |
Family
ID=19852574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8915214A Expired - Lifetime GB2220529B (en) | 1988-07-05 | 1989-07-03 | Reducing detent torque in three phase electric motors. |
Country Status (7)
Country | Link |
---|---|
US (1) | US5030864A (en) |
JP (1) | JP2569161Y2 (en) |
KR (1) | KR950001850Y1 (en) |
DE (1) | DE3921725C2 (en) |
FR (1) | FR2635927A1 (en) |
GB (1) | GB2220529B (en) |
NL (1) | NL8801700A (en) |
Families Citing this family (53)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5218253A (en) * | 1990-12-19 | 1993-06-08 | Integral Peripherals, Inc. | Spin motor for a hard disk assembly |
DE9017972U1 (en) * | 1990-12-19 | 1993-07-01 | Philips Patentverwaltung Gmbh, 2000 Hamburg, De | |
DE69131993T2 (en) * | 1990-12-19 | 2000-07-20 | Mobile Storage Technology Inc | MINIATURE HARD DISK DRIVE FOR PORTABLE COMPUTER |
US5448119A (en) * | 1991-03-29 | 1995-09-05 | Nagano Nidec Corporation | Spindle motor |
JP2551929Y2 (en) * | 1991-06-05 | 1997-10-27 | 長野日本電産株式会社 | motor |
JP2546875Y2 (en) * | 1991-07-16 | 1997-09-03 | 日本電産株式会社 | motor |
JP3128282B2 (en) * | 1991-09-10 | 2001-01-29 | 日本電産株式会社 | Brushless multi-phase DC motor |
DE4136691A1 (en) * | 1991-11-07 | 1993-05-13 | Siemens Ag | ELECTRICAL MACHINE WITH A PERMANENT MAGNETIC RUNNER |
IN186007B (en) * | 1991-12-10 | 2001-06-02 | British Tech Group | |
JPH0578157U (en) * | 1992-03-19 | 1993-10-22 | motor | |
JP2881528B2 (en) * | 1992-05-15 | 1999-04-12 | ミネベア株式会社 | Flat motor stator structure |
US5489811A (en) * | 1992-06-11 | 1996-02-06 | Generac Corporation | Permanent magnet alternator |
JP2742183B2 (en) * | 1992-09-10 | 1998-04-22 | 株式会社リコー | Brushless motor |
US5475277A (en) * | 1993-07-21 | 1995-12-12 | Fluidmaster, Inc. | Differential torque motor |
IT1261598B (en) | 1993-09-30 | 1996-05-23 | Gate Spa | PERMANENT MAGNET ELECTRIC MOTOR WITH REDUCED RELUCTANCE TORQUE |
JP2740893B2 (en) * | 1993-11-01 | 1998-04-15 | 日本サーボ株式会社 | Permanent magnet type stepping motor |
US5590003A (en) * | 1995-03-08 | 1996-12-31 | Seagate Technology, Inc. | Hydrodynamic spindle motor having distributed windings |
JP3376373B2 (en) * | 1995-06-07 | 2003-02-10 | ミネベア株式会社 | Motor structure |
JP3407529B2 (en) * | 1996-02-28 | 2003-05-19 | 株式会社日立製作所 | Two-pole turbine generator and its rotor |
JPH09285088A (en) * | 1996-04-12 | 1997-10-31 | Hitachi Ltd | Permanent magnet dynamo-electric machine and motor-driven vehicle employing the same |
DE69709868T2 (en) * | 1996-07-02 | 2003-02-27 | Domel Elektromotorji In Gospod | ELECTRONICALLY COMMUTED DIRECT DRIVE FOR WASHING MACHINE DRUM |
US6100620A (en) * | 1996-08-05 | 2000-08-08 | S.H.R. Ltd. Bvi | High frequency synchronous rotary electrical machine |
US5861696A (en) * | 1996-09-04 | 1999-01-19 | Quantum Corporation | Methods and apparatus for improved DC motors and magnetic clutches |
TW382160B (en) * | 1997-04-02 | 2000-02-11 | Ind Tech Res Inst | Brush-less motor stator and arc modification method thereof |
US6206181B1 (en) | 1997-09-16 | 2001-03-27 | Motion Systems, L.C. | Gearless motorized conveyor roller |
US5918728A (en) * | 1997-09-16 | 1999-07-06 | Motion Systems, L.C.L.L.C. | Gearless motorized roller with variable frequency controller |
US6244427B1 (en) | 1997-09-16 | 2001-06-12 | Motion Systems, L.C. | Modular gearless motorized conveyor roller |
WO1999065134A1 (en) * | 1998-06-11 | 1999-12-16 | Aspen Motion Technologies, Inc. | Direct drive inside-out brushless roller motor |
JP3804343B2 (en) * | 1999-06-29 | 2006-08-02 | 松下電器産業株式会社 | Motor core and motor using the same |
AU6358800A (en) * | 1999-07-23 | 2001-02-13 | Advanced Rotary Systems, Llc | Electric drive (options) |
US6664696B1 (en) * | 2000-02-29 | 2003-12-16 | Seagate Technology Llc | Tooth saturation for reduced electromagnetic harmonics |
JP3936538B2 (en) * | 2000-05-30 | 2007-06-27 | 株式会社Neomax | Thin permanent magnet generator and diskette incorporating the same |
US6777844B2 (en) * | 2000-10-24 | 2004-08-17 | Rexair, Inc. | Brushless motor |
JP2002199692A (en) * | 2000-12-27 | 2002-07-12 | Minebea Co Ltd | Stepping motor, stepping motor device and its drive method |
JP4250878B2 (en) * | 2001-08-08 | 2009-04-08 | パナソニック株式会社 | Vernier type brushless motor |
US6848147B2 (en) * | 2002-04-08 | 2005-02-01 | Royal Appliance Mfg. Co. | Internally driven agitator |
JP3680213B2 (en) * | 2002-05-30 | 2005-08-10 | デンソートリム株式会社 | Three-phase magnet generator |
JP2004166381A (en) * | 2002-11-12 | 2004-06-10 | Mitsubishi Electric Corp | Three-phase ac generator |
DE10305905A1 (en) * | 2003-02-13 | 2004-08-26 | Bayerische Motoren Werke Ag | Electric motor e.g. for valve in internal combustion engine, has rotor poles with alternately opposed magnetic field directions, and defined ratio of number of stator poles to number of rotor poles |
US20050015918A1 (en) * | 2003-07-22 | 2005-01-27 | Royal Appliance Mfg. Co. | Brushless dc drive mechanism for seld propelled aplicance |
KR20050089355A (en) * | 2004-03-04 | 2005-09-08 | 엘지전자 주식회사 | Bldc motor for large capacity drum-type washing machine |
FR2894403A1 (en) * | 2005-12-02 | 2007-06-08 | Leroy Somer Moteurs | ROTATING ELECTRICAL MACHINE WITH REDUCED TORQUE CORDS |
US7385328B2 (en) | 2006-05-23 | 2008-06-10 | Reliance Electric Technologies, Llc | Cogging reduction in permanent magnet machines |
US7671509B2 (en) * | 2007-08-20 | 2010-03-02 | Scott Terry D | Rotor and stator assemblies for permanent magnet electric generator |
US20090315428A1 (en) * | 2008-06-23 | 2009-12-24 | Cheng-Chun Chou | Lamination of stator of three-phase motor for increasing winding space |
DE102009050991A1 (en) * | 2009-10-28 | 2011-05-05 | Bayerische Motoren Werke Aktiengesellschaft | Electric drive machine for a vehicle |
KR101124077B1 (en) * | 2010-07-21 | 2012-03-20 | 삼성전기주식회사 | Stator core and motor device including the same |
JP5705648B2 (en) | 2011-05-23 | 2015-04-22 | 株式会社マキタ | Electric tool |
JP6095267B2 (en) * | 2012-02-24 | 2017-03-15 | 株式会社クリーンクラフト | Three-phase permanent magnet synchronous motor |
JP6113526B2 (en) * | 2013-03-01 | 2017-04-12 | 株式会社ミツバ | Electric motor and motor with reduction gear |
AP2016009047A0 (en) * | 2013-08-14 | 2016-02-29 | Yamaha Motor Co Ltd | Synchronous drive motor |
US11336163B2 (en) * | 2015-08-17 | 2022-05-17 | Delta T, Llc | Low profile axial, flux permanent magnet synchronous motor |
JP6430570B2 (en) * | 2017-03-27 | 2018-11-28 | 岡山県 | In-wheel motor |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3860843A (en) * | 1970-06-26 | 1975-01-14 | Matsushita Electric Ind Co Ltd | Rotating electric machine with reduced cogging |
DE2208854C3 (en) * | 1972-02-25 | 1981-07-30 | Gerhard Berger GmbH & Co Fabrik elektrischer Meßgeräte, 7630 Lahr | Synchronous motor with a multi-pole permanent magnet |
GB1603969A (en) * | 1977-05-26 | 1981-12-02 | Matsushita Electric Ind Co Ltd | Rotary electrical machine |
JPS5472410A (en) * | 1977-11-22 | 1979-06-09 | Matsushita Electric Ind Co Ltd | Revolving electrical machinery |
US4302692A (en) * | 1978-02-06 | 1981-11-24 | Matsushita Electric Industrial Co., Ltd. | Rotational speed signal sensor |
JPS55114175A (en) * | 1979-02-22 | 1980-09-03 | Matsushita Electric Ind Co Ltd | Motor |
CA1140984A (en) * | 1980-05-07 | 1983-02-08 | Gilles Leveille | Direct current motor with a dipole stator |
DE3122049A1 (en) * | 1980-06-06 | 1982-07-15 | Papst-Motoren Kg, 7742 St Georgen | DC external-rotor motor having no commutator |
JPS5775554A (en) * | 1980-10-28 | 1982-05-12 | Nippon Telegr & Teleph Corp <Ntt> | Flat motor |
FR2497419B1 (en) * | 1980-12-30 | 1986-04-18 | Papst Motoren Gmbh & Co Kg | DIRECT CURRENT MOTOR WITHOUT DOUBLE PULSE MANIFOLD |
JPS59122781U (en) * | 1983-02-07 | 1984-08-18 | ティーディーケイ株式会社 | electromagnetic rotating machine |
JPS6087649A (en) * | 1983-10-20 | 1985-05-17 | Takahashi Yoshiteru | 6-pole, 2-coil, small-sized dc brushless motor |
JPS60103272U (en) * | 1983-12-16 | 1985-07-13 | 株式会社安川電機 | Brushless motor stator |
KR890002787B1 (en) * | 1983-12-16 | 1989-07-28 | 마부찌 모터 가부시끼 가이샤 | Brushless electric motor |
NL8401519A (en) * | 1984-05-11 | 1985-12-02 | Philips Nv | ELECTRIC MOTOR. |
DE3578558D1 (en) * | 1984-11-13 | 1990-08-09 | Digital Equipment Corp | BRUSHLESS DC MOTOR. |
JPS6281473U (en) * | 1985-11-07 | 1987-05-25 | ||
JPS62135248A (en) * | 1985-12-09 | 1987-06-18 | Mitsubishi Chem Ind Ltd | Motor |
JPS62152361A (en) * | 1985-12-23 | 1987-07-07 | Matsushita Electric Works Ltd | Brushless motor |
-
1988
- 1988-07-05 NL NL8801700A patent/NL8801700A/en not_active Application Discontinuation
-
1989
- 1989-07-01 DE DE3921725A patent/DE3921725C2/en not_active Expired - Fee Related
- 1989-07-03 JP JP1989080750U patent/JP2569161Y2/en not_active Expired - Lifetime
- 1989-07-03 KR KR2019890009690U patent/KR950001850Y1/en active IP Right Grant
- 1989-07-03 GB GB8915214A patent/GB2220529B/en not_active Expired - Lifetime
- 1989-07-04 FR FR8908955A patent/FR2635927A1/en active Pending
- 1989-09-06 US US07/403,555 patent/US5030864A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE3921725A1 (en) | 1990-01-11 |
JPH0214282U (en) | 1990-01-29 |
GB2220529B (en) | 1992-10-21 |
KR900003863U (en) | 1990-02-08 |
JP2569161Y2 (en) | 1998-04-22 |
KR950001850Y1 (en) | 1995-03-16 |
US5030864A (en) | 1991-07-09 |
GB2220529A (en) | 1990-01-10 |
DE3921725C2 (en) | 1999-12-02 |
NL8801700A (en) | 1990-02-01 |
FR2635927A1 (en) | 1990-03-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930703 |